Chemical and Physical Changes in Matter

Front

Examples of a physical change in matter: cutting paper, burning wood, fireworks exploding, baking soda reacting with vinegar.

Back

cutting paper

Front

How could the components of a saltwater solution be separated?

Back

By boiling the solution, leaving the salt behind.

Front

Which of the following is a physical change?

• light from a glow stick
• burning wood
• rusting metal on a car
• crushing a soda can

Back

crushing a soda can

Front

Bob heated ice until it became a liquid. Which term identifies this change?

Back

Melting

Front

What are the three states of matter?

Back

Liquid, solid, and gas

Front

How do we know a mixture of flour and rice is only a physical change?

Back

The flour and rice can be sifted so it becomes separate again.

Front

What occurred when Billy created a clay figure of a frog in art class?

Back

He physically changed the modeling clay

Front

Which of the following is a chemical change?

• Salt dissolving in water
• Popsicles freezing
• Wood burning
• Shattering a glass

Back

Wood burning

Front

If you run a magnet through a beaker of water, iron filings, and salt mixed together, what will be left behind in the beaker?

Back

a solution of water and salt molecules

Front

What will happen to water puddles outside if the temperature continues to go up throughout the day?

Back

The liquid water will evaporate into a gas